Sound Waves 6th

How does sound normally travel through the ear?

• ear drum vibrates → fluid moves → bones in middle ear vibrate → bone taps on cochlea → hearing nerve is triggered

• ear drum vibrates → bones in middle ear vibrate → fluid moves → bone taps on cochlea → hearing nerve is triggered

• ear drum vibrates → bone taps on cochlea → fluid moves → bones in middle ear vibrate → hearing nerve is triggered

• Soundwaves enter the ear canal -- The ear drum vibrates → bones in middle ear vibrate → bone taps on cochlea → fluid moves → hearing nerve is triggered

Why does sound not travel in outer space?

• There is no one in space to hear it.

• There is too much air.

• There is no medium.

• It is too cold.

Which statement best describes a function of the hammer(Mallus), anvil(Incus), and stirrup(Stapes) in the middle ear?

• They move sound waves from the eardrum to the inner ear.

• They even out the air pressure in the eardrum.

• They move sound waves into the ear canal.

Which sound wave would have the greatest Amplitude and hertz (hZ) measurement?

• one produced by an airplane engine during takeoff

• one produced by leaves rustling in a light breeze

• one produced by a pencil hitting the floor

• one produced by a car horn beeping

Tags

NGSS.MS-PS4-1

What observations can be made from changing the pitch of produced sound?

• Higher pitch causes faster vibrations of particles.

• Higher pitch causes slower vibrations of particles.

• Changing the pitch stops the vibrations of particles.

• Changing the pitch changes the number of particles.

Tags

NGSS.MS-PS4-2

How is the wavelength of a sound wave affected as the frequency of the wave increases?

• The wavelength decreases.

• The wavelength increases.

• The wavelength stays the same.

• It varies over time.

Tags

NGSS.HS-PS4-1

Which will occur when a guitar string is tightened?

• It will vibrate faster than before creating a higher frequency

• It will vibrate more slowly than before creating a lower frequency

• It will create a softer sound than before.

• It will create a louder sound than before.

Tags

NGSS.MS-PS4-1

Which action would most likely increase the volume of a sound?

• a decrease in amplitude

• a decrease in frequency

• an increase in amplitude

• an increase in frequency

Tags

NGSS.MS-PS4-1

What results when sound waves reflect from a hard, solid surfaces?

• amplification

• echo

• frequency

• pitch

Tags

NGSS.MS-PS4-2

Which term describes the part of the sound wave in which particles are closest together?

• Rarefaction

• Compression

• Amplitude